Raymarine stand-alone master instrument - Manual (Page 12)

Chapter 1: Control Head Installation 9
1.3 Power supply (Stand-alone operation)
Caution: The ST30 Bidata must be connected to a 12V supply only.
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+
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SEATALK
SP
EE
D
D683
5A
Red
Screen
12v Supply
D EP
TH
For stand-alone operation, use the standard 1m cable supplied.
1. Connect the moulded power plug to either 'SeaTalk' connection on
the rear of the instrument. Run the free end back to the vessel's
distribution panel.
2. Cut the cable to length and connect the red wire to 12V and the
screen to 0V. Protect the circuit with a 5A fuse/circuit breaker.
1.4 Power supply (SeaTalk system)
The ST30 Bidata can be connected to an existing SeaTalk system using a
Standard SeaTalk Extension or Interface Cable.
Autohelm Autohelm Autohelm
Power
Extension Cable
D628